WITHDRAWN: Hybrid Laser Fusion Thermonuclear Propulsion System

A closer look for nuclear power usage as a source of development not destruction is concerned to be extended in future. Nuclear power systems are strongly exists nowadays as a reliable source of power. The performance gap between nuclear propulsion systems and others gives the priority for its usage in future missions. In this research, a theoretical study on merging two promising techniques for propulsion systems will be discussed. First, laser fusion propulsion is discussed and the effect of merging nuclear substances is considered. The system is composed of laser source, hybrid heat exchanger and nozzle. Solar energy concentration can be used as a free source of power and also as a laser generation source. Most of the study is focused on the hybrid heat exchanger where the hybridization takes place. Preliminary studies show a significant enhancement in the system performance after merging nuclear power. Using laser fusion by Excimer laser source at 105 mjoules energy and pulse time 20 nanoseconds shows that laser fusion of radioactive material as radium produces about 5000 Newton compared to about 18 Newton for graphite. Enhanced design parameters enable reaching about 1500 newton using natural materials which increase the chance of using materials as graphite and silicon in propulsion and power generation by laser fusion. Parametric study and performance maximization simulations show that the accumulation of 500 mJ from power sources on radium at pulse time 34 femtoseconds, thrust level can reach about 70 Gega newton and the momentum coupling coefficient is about 4.85 N/W. Results identify this idea as the most probable to breakthrough relativistic propulsion systems. Modeling shows unprecedented results which reflect the importance of such methods to revolutionize space propulsion systems either for launching or deep space exploration missions.